Improvement in vapor-burners



A. W. JOHNSON. VAPOR-BURNERS.

Patented Sept. 4,1877.

1.. I I IUIDU jl UP?! 257.

N-PETERS, PHOT0-LITHOGRAPHER. WASNINGYON. D. c.

UNITED STATES T FFICE.

ALBERT W. JOHNSON, OF HAVEN, CONN IMPROVEMENT IN VAPOR-BURNERS.

Specification forming part of Letters Patent No. 194,873, datedSeptember l, 1877 application filed I July 24, 1877.

Burners; and that the following is a full, clear,

and. exact description of the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,making part of this specification.

This invention is in the nature of an improvement in burners for burningvaporized gasoline or other hydrocarbons; and the invention consists ina vapor-generating chamber closely surrounded by heat-transmitting websand ribs, and provided with a valve at its lower end for regulating theinflow of liquid to be vaporized; hollow supporting-posts provided withopenings for conducting a portion of the vapor to a point near the saidgenerating-chamber, and a valve of novel construction, substantially ashereinafter described.

In the accompanying drawings, Figure 1 is a side elevation of burnerwith my improvements. Fig. 2 is a vertical section of the same. Fig. 3is two views of valve.

'A represents a barrel for containing the liquid to be vaporized, itslower end being T- shaped and threaded, for the purpose of connectingone of its arms to a pipe leading from an elevated reservoir, (not hereshown,) while the other arm connects with a pipe leading to anotherburner, or may be closed by cap or plug, as may be desirable. Near thetop of the barrel A, and surrounding it, is a circular flange, O, therim of which is curved upward, forming a cup. Situated above andconnecting with the barrel A is a vapor-generating chamber, B, providedat its top with a small aperture, 12, for the escape of vapor, and atits lower end with a valve, 0, for admitting or stopping the flow ofliquid from the barrel A. On two opposite sides of the chamber B, andattached thereto, are webs N N, terminating at their upper ends inupright posts or sup ports D D, bearing a circular disk, S, which formsthe bottom of the gas-chamber L. From the bottom of the gas-chamber Lare cavities d 01 extending down into the posts D D, the lower ends ofthese cavities being provided with apertures I I upon either side. it nare curved projecting ribs partly surrounding the apertures II. n is arib connecting the ribs n n and the exterior of the vapor-generatingchamber B. L is an inverted cup, and forms the upper part of thegas-chamberfL, and is provided with holes Z l for the escape of thevapor. M is a tu be placed over the aperture b, and extends from a pointa little above said aperture through the disk S to'a point within andnear the top of the gas-chamber L, as shown.

The valve 0 is made in the form'of a cylinder, slabbed or flattened (ormay be grooved) from a point on its periphery near its base to its upperend, and is loosely fitted into the chamber B. At its base is ashoulder, c, tapering or concaved, which comes in contact with and seatsupon the metal surrounding the lower end of the chamber B when the valveis closed. This valve is operated by means of a screw and hand-wheel atthe lower end of the valve-rod O. In opening this valve the passage intothe chamber B is gradually enlarged by reason of the tapering or wedgeshape of the valve.

The operation of this burner is as follows: The valve 0 is opened toallow a small quantity of gasoline or hydrocarbon to flowinto the cup 0,and then closed, and the liquid in the cup ignited. The flame thusproduced heats the generatiug-chamberB. The valve is then again opened,and the gasoline or hydrocarbon flows from the barre'lA into the heatedchamber B, is instantly converted into vapor, and flows out through theaperture 11, and enters the gas-chamber L through thetube M, taking upan amount of oxygen from the atmosphere in its passage between theaperture b and tube M, with which it becomes intimately mixed in thegas-chamber L. This mixture of vapor and oxygen then issues in theseveral small holes I l from the upper part of the gaschamber, and,being ignited, burns with intense heat. A portion also of themixed vaporand oxygen passes down through the cavities d d in the posts D D and outat the apertures I I, and, these jets being ignited, the heat from themis transmitted through the ribs 11. n and n and the webs N N to thegenerating-chamber B, keeping it sufficiently hot to continue tovaporize the inflowing liquid.

From the foregoing description it isobvious that, whatever the pressureof liquid in the supply-pipe, it can be easily regulated and controlledby the valve 0 (which may be made extremely sensitive by elongating theflat tened portion of the cylinder) at thelower end of thevapor-generatin g chamber. by reason of which, and the free openpassage-Way for the escape of vapor at the upperendof said chamber, asteady and even flow of vapor is insured, not uniformly attainable inburners.

where the escape-passage for the vapor is regulated by a valve. Thevaporgenerating chamber being very narrow and long, and the heat" beingtransmitted directly to it, it is impossi- 'flame above isobviated,'even in the-hands of the most inexperienced operator.

What I claim as new, and desire to secure by Letters Patent, is-

1. The vapor-generating chamber B, situfor the purpose described.

ated between the valve cand thegas-chamber L, in combination with thehollow supporting-posts D D, substantially as described, and for thepurpose set forth.

2. The hollow supporting-posts D D, proviled w t pen ng vI sub tan y asand 3. The openings I 1, arranged as conductors for discharging thevapor in its passage from the gas-chamber L through the hollowsupporting-posts D D to the point of ignition,

substantiallyas shown and described, andfor the purpose set forth. I

4. The combination of the heat-transmitting Webs N N and ribs 0?. n andn with the openings I I and vaporgenerating chamber B, substantially asdescribed and set forth.

5. The combination of the vapor-generating chamber B, the hollow posts DD, the heattransmitting webs N N, and ribs n n and n,-

openings ;I*I, valve 0 tube M, and gas-chamber L, substantially as andfor the purpose described.

ALBERT W. JOHNSON. Witnesses:

GEORGE TERRY, Boone M. SHERMAN.

